Craig Mayer, Nick WIlliams, Vojtech Huser
Lister Hill National Center for Biomedical Communications, National Library of Medicine, NIH, Bethesda, MD

See the full regCTG repository at https://github.com/lhncbc/CRI/tree/master/regCTG

To return to the list of conditions and links to their rpeorts go to https://lhncbc.github.io/CRI/regCTG/regCTG-condition_report_links.html


Study Counts

Type Study_count
Total_Studies 2187
interventional 1666
Observational 482
Registry 39

Studies over Time

```

Interventional Trials

Intervention Type

intervention_type Study_Count
Drug|placebo 505
Drug 389
Other 215
Device 167
Behavioral 150
Procedure 59
Device|Drug 18
Device|Other 16
Device|Drug|placebo 12
Biological|placebo 11
Diagnostic Test 11
Dietary Supplement 10
Dietary Supplement|placebo 10
Behavioral|Other 9
Biological 9
Other|placebo 9
Drug|Other 7
Behavioral|Drug 5
Behavioral|Device 4
Combination Product 3
Device|Procedure 3
Dietary Supplement|Drug 3
Drug|Other|placebo 3
Other|Procedure 3
Radiation 3
Behavioral|Dietary Supplement|placebo 2
Biological|Drug 2
Device|Drug|Other 2
Device|Radiation 2
Diagnostic Test|Other 2
Dietary Supplement|Other 2
Drug|placebo|Procedure 2
Drug|Radiation 2
Behavioral|Biological|Diagnostic Test 1
Behavioral|Device|Procedure 1
Behavioral|Drug|placebo 1
Combination Product|Drug|placebo 1
Combination Product|placebo 1
Device|Other|Procedure|Radiation 1
Device|placebo 1
Diagnostic Test|Procedure 1
Dietary Supplement|Other|placebo 1
Drug|Genetic|Procedure 1
Drug|Other|placebo|Procedure 1
Drug|Other|Procedure 1
Drug|placebo|Radiation 1
Drug|Procedure 1
Genetic 1
placebo 1

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Weekly studies for each intervention

Studies by Country

Country Study_Count
United States 347
United Kingdom 140
NA 106
Germany 93
Canada 73
France 61
China 53
Netherlands 39
Italy 37
Brazil 35
Spain 35
Denmark 32
Belgium 31
Japan 30
Norway 20
Sweden 14
United States|Canada 14
Switzerland 13
Turkey 13
Taiwan 12
Kyrgyzstan 11
Israel 9
Korea, Republic of 9
Tunisia 9
Australia 8
Poland 8
Ireland 7
Portugal 7
Australia|New Zealand 6
Greece 6
Hong Kong 6
Austria 5
Netherlands|United Kingdom 5
United States|Germany 5
Belgium|Netherlands 4
Egypt 4
India 4
New Zealand 4
United States|Australia|New Zealand 4
Hungary 3
Indonesia 3
Russian Federation 3
Singapore 3
Sweden|United Kingdom 3
Thailand 3
Argentina 2
Denmark|Norway|Sweden 2
Germany|Spain|United Kingdom 2
Germany|Switzerland 2
Germany|United Kingdom 2
Japan| 2
Slovenia 2
United States|Australia|Canada|New Zealand 2
United States|Puerto Rico 2
United States|United Kingdom 2
Andorra|Austria|Belgium|Bulgaria|Czech Republic|Denmark|France|Germany|Hungary|Italy|Netherlands|Poland|Romania|Russian Federation|Spain|United Kingdom 1
Argentina|Australia|Austria|Belgium|Brazil|Canada|China|Colombia|Costa Rica|Czech Republic|Denmark|Estonia|Finland|France|Germany|Hungary|Iceland|India|Israel|Italy|Latvia|Lithuania|Mexico|Netherlands|Peru|Philippines|Poland|Portugal|Romania|Russian Federation|Slovakia|South Africa|Spain|Sweden|Switzerland|Taiwan|Thailand|Turkey|United Kingdom|Venezuela 1
Argentina|Australia|Belgium|Brazil|Denmark|Germany|India|Philippines|United Kingdom 1
Argentina|Australia|Canada|Chile|Czechia|France|Greece|Hungary|Korea, Republic of|Netherlands|Russian Federation|South Africa|United Kingdom 1
Argentina|Australia|France|Germany|Italy|Japan|Korea, Republic of|Mexico|Poland|Romania|Russian Federation|Spain 1
Argentina|Australia|Germany|India|United Kingdom| 1
Argentina|Austria|Belgium|Bulgaria|Canada|Chile|China|Colombia|Croatia|Czech Republic|Denmark|Estonia|Finland|France|Germany|Greece|Guatemala|Hong Kong|Hungary|Iceland|India|Italy|Japan|Korea, Republic of|Latvia|Lithuania|Mexico|Netherlands|Norway|Philippines|Poland|Portugal|Romania|Russian Federation|Serbia|Slovakia|South Africa|Spain|Sweden|Taiwan|Thailand|Turkey|United Kingdom 1
Argentina|Brazil|Bulgaria|Chile|Germany|Korea, Republic of|Slovakia|Spain 1
Argentina|Brazil|Canada|Croatia|Czech Republic|Denmark|Finland|Germany|Hong Kong|India|Italy|Korea, Republic of|Malaysia|Norway|Philippines|South Africa|Spain|Sweden|Thailand|Ukraine 1
Argentina|Brazil|Canada|Czech Republic|Denmark|Finland|Germany|Hong Kong|India|Italy|Korea, Republic of|Malaysia|Norway|Philippines|Romania|Russian Federation|South Africa|Spain|Sweden|Thailand 1
Argentina|Brazil|Chile|Dominican Republic|Ecuador|Honduras|Mexico|Panama 1
Argentina|Chile|China|Taiwan 1
Argentina|Chile|Colombia|Czech Republic|Denmark|Ecuador|Egypt|Estonia|France|Germany|Hungary|Israel|Italy|Korea, Republic of|Latvia|Lithuania|Netherlands|Peru|Romania|Russian Federation|Slovakia|Spain|Switzerland|Turkey|United Kingdom 1
Argentina|Chile|Czechia|Germany|Hungary|Norway|Romania|Russian Federation|Spain|Sweden 1
Argentina|Chile|Estonia|France|Germany|Hungary|Italy|Peru|Poland|Romania|Russian Federation|Slovakia 1
Argentina|Chile|New Zealand|South Africa 1
Argentina|Colombia|Croatia|Estonia|Hungary|India|Israel|Korea, Republic of|Latvia|Mexico|Panama|Poland|Russian Federation|Serbia|Slovenia|Turkey|United Kingdom 1
Argentina|Colombia|Italy|Malaysia|Mexico|Netherlands|Spain|Switzerland|United Kingdom 1
Argentina|France|Germany|Italy|Norway|Russian Federation|Ukraine 1
Argentina|Mexico|Russian Federation|Ukraine 1
Australia|Austria|Belgium|Brazil|Canada|Denmark|France|Germany|Greece|Hungary|Israel|Italy|Korea, Republic of|Netherlands|Poland|Russian Federation|Slovakia|South Africa|Spain|Turkey|United Kingdom 1
Australia|Austria|Canada|France|Germany 1
Australia|Austria|Canada|France|Hungary|Italy|Netherlands|Poland|Portugal|Russian Federation|South Africa|Spain|Switzerland|United Kingdom 1
Australia|Austria|Germany|Ireland 1
Australia|Belgium|Brazil|Bulgaria|China|Denmark|France|Germany|Greece|Hungary|Italy|Netherlands|New Zealand|Philippines|Poland|Russian Federation|South Africa|Spain|Taiwan|Tunisia|Turkey|Ukraine|United Kingdom 1
Australia|Belgium|Bulgaria|Denmark|Finland|Germany|Greece|Hong Kong|Hungary|Israel|Malaysia|Poland|Romania|Singapore|South Africa|Spain|Sweden|Thailand 1
Australia|Belgium|Canada|France|Germany|Italy|Spain|Turkey 1
Australia|Bulgaria|Germany|Netherlands|New Zealand|Romania 1
Australia|Canada|France|Germany|Hungary|Poland|Slovakia|Spain|Sweden 1
Australia|China|India 1
Australia|China|Korea, Republic of|New Zealand|Taiwan 1
Australia|Czech Republic|Poland|Russian Federation 1
Australia|Denmark|Norway 1
Australia|Germany|Netherlands|New Zealand|Poland|South Africa|Spain 1
Austria|Belgium|Bulgaria|Croatia|Czech Republic|Denmark|Finland|France|Germany|Hungary|Italy|Korea, Republic of|Netherlands|Poland|Romania|Russian Federation|Slovakia|South Africa|Spain|Sweden|Ukraine|United Kingdom 1
Austria|Belgium|Bulgaria|Czech Republic|Denmark|Finland|France|Germany|Hungary|Israel|Italy|Latvia|Lithuania|Netherlands|Norway|Poland|Portugal|Romania|Russian Federation|Slovakia|Slovenia|Spain|Turkey|Ukraine|United Kingdom 1
Austria|Belgium|Canada|France|Germany|Italy|Netherlands|South Africa|Spain|United Kingdom 1
Austria|Belgium|Canada|Germany|Russian Federation 1
Austria|Belgium|Czech Republic|Denmark|Estonia|Germany|Greece|Italy|Latvia|Lithuania|Netherlands|Norway|Romania|Russian Federation|Slovakia|Slovenia|Spain|Sweden|Ukraine|United Kingdom| 1
Austria|Belgium|Czechia|Denmark|Estonia|France|Germany|Greece|Hungary|Ireland|Italy|Latvia|Lithuania|Norway|Poland|Portugal|Romania|Russian Federation|Slovakia|Slovenia|Spain|Sweden|United Kingdom 1
Austria|Belgium|Denmark|France|Germany|Netherlands|South Africa|Sweden 1
Austria|Belgium|France|Germany|Netherlands|United Kingdom 1
Austria|Belgium|Germany|Italy|Spain|United Kingdom 1
Austria|Bulgaria|Canada|Czech Republic|France|Germany|Hungary|Italy|Lithuania|Netherlands|Poland|South Africa|Spain|United Kingdom 1
Austria|Canada|France|Germany|Italy|Russian Federation|Sweden 1
Austria|Denmark|Netherlands|Norway|Sweden 1
Austria|France 1
Austria|France|Germany|Hungary|Italy|Spain|United Kingdom 1
Austria|France|Germany|Israel 1
Bangladesh 1
Belgium|Bulgaria|Finland|Germany|Hungary|Israel|Poland|Romania|Russian Federation|Sweden 1
Belgium|Bulgaria|Greece|Hungary|Ireland|Russian Federation|Slovakia|Spain|Turkey|United Kingdom 1
Belgium|Canada|Germany|Netherlands 1
Belgium|Canada|Germany|Spain|United Kingdom 1
Belgium|Czech Republic|Denmark|Germany|Hungary|Netherlands|Spain|Sweden 1
Belgium|Czech Republic|Estonia|Germany|Hungary|Korea, Republic of|Lithuania|Norway|Spain 1
Belgium|Denmark|Finland|Germany|Netherlands 1
Belgium|Denmark|Germany|Hungary 1
Belgium|Denmark|Germany|Netherlands 1
Belgium|Denmark|Netherlands|Romania|Russian Federation 1
Belgium|France 1
Belgium|France|Germany|Italy|Philippines|Poland|Russian Federation|Spain|Ukraine 1
Belgium|France|Japan 1
Belgium|Germany 1
Belgium|Greece|Netherlands|Switzerland|United Kingdom 1
Belgium|Hungary 1
Belgium|Italy|Netherlands 1
Belgium|Sweden 1
Belgium|United Kingdom 1
Bulgaria 1
Bulgaria|Argentina|Austria|Belgium|Canada|Croatia|Czechia|Denmark|Estonia|Germany|Greece|Hungary|Latvia|Lithuania|Netherlands|Poland|Romania|Serbia|Slovakia|Spain|United Kingdom 1
Bulgaria|China|Czechia|Estonia|Germany|Greece|Hungary|Italy|Korea, Republic of|Mexico|Poland|Romania|Russian Federation|Slovakia|Ukraine 1
Bulgaria|Cyprus|Greece 1
Bulgaria|Czech Republic|Hungary|Poland|Romania|Slovakia 1
Bulgaria|Denmark|Poland|Slovakia|Sweden 1
Bulgaria|Finland|Germany|Hungary|Slovakia 1
Bulgaria|France|Hungary|Italy|Poland|Russian Federation|Slovakia|Ukraine 1
Bulgaria|Germany|Hungary|Korea, Republic of|Latvia|Lithuania|Macedonia, The Former Yugoslav Republic of|Poland|Romania|Russian Federation|Slovakia|South Africa|Spain|Ukraine|United Kingdom 1
Bulgaria|Germany|Hungary|Poland|Russian Federation|United Kingdom 1
Bulgaria|Germany|Hungary|Ukraine 1
Bulgaria|Germany|Poland|United Kingdom 1
Bulgaria|Japan|Romania|Russian Federation|Ukraine 1
Bulgaria|Romania|Russian Federation 1
Bulgaria|Slovakia 1
Canada|Belgium|Denmark|France|Germany|Italy|Netherlands|South Africa 1
Canada|Croatia|Czech Republic|Estonia|France|Germany|Guatemala|India|Korea, Republic of|Latvia|Lithuania|Philippines|Poland|South Africa|Taiwan 1
Canada|Denmark 1
Canada|Denmark|Netherlands|Romania|Ukraine 1
Canada|France|Hungary|India|Korea, Republic of|Latvia|Lithuania|Romania|South Africa|United Kingdom 1
Canada|France|Portugal|Spain 1
Canada|Germany|Hungary|Spain 1
Canada|Germany|Netherlands|Sweden 1
Canada|Germany|Spain 1
Canada|United States|Australia|Germany|Japan|Korea, Republic of|Philippines|Poland|Russian Federation|Slovakia|Taiwan|Ukraine 1
Chile 1
China|Hong Kong|Indonesia|Korea, Republic of|Thailand 1
China|India|Korea, Republic of|Philippines 1
China|Japan|Korea, Republic of 1
China|Korea, Republic of 1
China|Korea, Republic of|Philippines|Taiwan 1
China|Korea, Republic of|Philippines|Taiwan|Thailand 1
China|Korea, Republic of|Taiwan 1
Colombia 1
Colombia|Czech Republic|Canada|Denmark|Finland|France|Germany|Hungary|Iceland|India|Italy|Peru|Russian Federation|Slovakia|Taiwan 1
Croatia 1
Cyprus 1
Czech Republic|France|Germany|Hungary|Italy|Peru|Poland|Russian Federation|South Africa|Spain|Ukraine 1
Czech Republic|Germany|Hungary|Korea, Republic of|Malaysia|Poland|Russian Federation|Taiwan 1
Czech Republic|Germany|Hungary|Poland 1
Czech Republic|Romania 1
Czechia 1
Czechia|Denmark|Germany|Hungary|Netherlands|Poland|Russian Federation|Spain 1
Czechia|Germany|Greece|Netherlands 1
Czechia|Germany|Hungary|Romania 1
Czechia|Hungary 1
Denmark|Estonia|Finland|Italy|Lithuania|Slovakia|Spain|United Kingdom 1
Denmark|Finland|Germany|Netherlands|United Kingdom 1
Denmark|Finland|Germany|Norway|Sweden 1
Denmark|Finland|Netherlands|Norway 1
Denmark|Finland|Netherlands|Norway|Sweden 1
Denmark|Germany 1
Denmark|Germany|Poland|Sweden|United Kingdom 1
Denmark|Germany|Sweden|United Kingdom 1
Estonia|Finland 1
Estonia|Finland|Germany|Korea, Republic of|Latvia|Lithuania|Netherlands|New Zealand|Russian Federation|Slovenia|South Africa|United Kingdom 1
Estonia|Finland|Germany|Netherlands|Russian Federation|Slovakia 1
Estonia|Germany 1
Estonia|Slovenia|Spain|Sweden|United Kingdom 1
Finland|Austria|Denmark|France|Slovenia 1
Finland|Germany|Netherlands|Russian Federation|United Kingdom 1
Finland|United Kingdom 1
France|United States|Colombia|Egypt|Guatemala|Hungary|Panama|Slovakia|Slovenia 1
Germany|Hungary|Italy 1
Germany|Hungary|Italy|Spain|United Kingdom 1
Germany|Italy|South Africa|Switzerland 1
Germany|Netherlands 1
Germany|Netherlands|Russian Federation|Sweden|United Kingdom 1
Germany|Netherlands|United Kingdom 1
Germany|New Zealand|Russian Federation|Sweden|United Kingdom 1
Germany|Poland 1
Germany|South Africa 1
Germany|Spain 1
Germany|United States|Belgium|Hungary 1
Germany|United States|Bulgaria|Japan|Korea, Republic of|Poland|Romania|Russian Federation|South Africa|Taiwan|Ukraine 1
Germany|United States|Czech Republic|Hungary|India|Slovakia|Spain|Turkey 1
Greece|United States|Finland|Italy|Portugal|Sweden|Turkey|United Kingdom 1
Hong Kong|India|Japan|Korea, Republic of|Singapore|Taiwan 1
Hong Kong|Korea, Republic of|Malaysia|Philippines|Taiwan 1
Hong Kong|Korea, Republic of|Philippines|Taiwan 1
Hungary|Slovakia 1
Iceland 1
India|Japan|Korea, Republic of|Philippines|Poland|Russian Federation|Taiwan|Ukraine|Vietnam 1
Iran, Islamic Republic of 1
Italy|Spain|Sweden 1
Italy|Switzerland 1
Japan|United States|Argentina|Czechia|Germany|Poland|Romania|Russian Federation|Ukraine 1
Korea, Republic of|United States|Australia|Canada|Japan|Netherlands|Romania|Russian Federation|Singapore|Spain|Turkey 1
Malaysia 1
Netherlands|South Africa 1
New Zealand|Thailand|United Kingdom 1
Norway|Sweden 1
Pakistan 1
Peru 1
Poland|United Kingdom 1
Saudi Arabia 1
Slovakia 1
Slovakia|Ukraine 1
South Africa 1
South Africa|Estonia|Germany|Netherlands|Romania|Russian Federation|Slovakia|Sweden|Ukraine 1
South Africa|United Kingdom 1
Spain|France|Germany 1
Spain|France|Germany|Italy 1
Spain|Sweden 1
Tunisia|Morocco 1
Ukraine|United States|Argentina|Estonia|Germany|Korea, Republic of|Norway|Russian Federation|South Africa|Sweden 1
United Kingdom|Germany|Netherlands|Spain|Sweden 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Bulgaria|Canada|Chile|China|Croatia|Czech Republic|Denmark|Estonia|Finland|France|Germany|Greece|Hong Kong|Hungary|Iceland|Italy|Latvia|Lithuania|Malaysia|Mexico|Netherlands|New Zealand|Norway|Pakistan|Philippines|Poland|Puerto Rico|Romania|Russian Federation|Singapore|Slovakia|South Africa|Spain|Sweden|Taiwan|Thailand|Ukraine|United Kingdom| 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Bulgaria|Canada|Chile|Colombia|Croatia|Czechia|Denmark|Finland|France|Germany|Greece|Guatemala|Hong Kong|Hungary|India|Ireland|Italy|Japan|Korea, Republic of|Latvia|Lithuania|Malaysia|Mexico|Netherlands|New Zealand|Norway|Philippines|Poland|Portugal|Romania|Russian Federation|Serbia|Singapore|Slovakia|Slovenia|South Africa|Spain|Sweden|Switzerland|Taiwan|Thailand|Turkey|Ukraine|United Kingdom|Vietnam 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Bulgaria|Canada|China|Colombia|Croatia|Denmark|Finland|France|Georgia|Germany|Greece|Guatemala|Hungary|India|Ireland|Israel|Italy|Korea, Republic of|Latvia|Lithuania|Malaysia|Mexico|Netherlands|New Zealand|Norway|Panama|Peru|Philippines|Poland|Portugal|Puerto Rico|Romania|Russian Federation|Serbia|Slovakia|South Africa|Spain|Sweden|Switzerland|Taiwan|Thailand|Tunisia|Turkey|Ukraine|United Kingdom 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Canada|Chile|China|Colombia|Czechia|Denmark|Finland|France|Germany|Hong Kong|Israel|Japan|Korea, Republic of|Netherlands|New Zealand|Norway|Peru|Philippines|Poland|Puerto Rico|Romania|Russian Federation|Singapore|South Africa|Spain|Sweden|Thailand|Turkey|Ukraine|United Kingdom|Vietnam 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Czech Republic|Denmark|Finland|France|Germany|Greece|Hong Kong|Hungary|Ireland|Italy|Japan|Lithuania|Malaysia|Mexico|Netherlands|New Zealand|Norway|Philippines|Poland|Portugal|Russian Federation|Singapore|Slovakia|Slovenia|South Africa|Spain|Switzerland|Taiwan|Thailand|Turkey|United Kingdom 1
United States|Argentina|Australia|Austria|Belgium|Canada|Chile|Germany|Italy|New Zealand 1
United States|Argentina|Australia|Austria|Belgium|Canada|Czechia|Denmark|France|Germany|Greece|Guatemala|Hong Kong|Hungary|Italy|Japan|Korea, Republic of|Netherlands|Philippines|Poland|Slovakia|Spain|Thailand|Turkey 1
United States|Argentina|Australia|Austria|Brazil|Canada|Chile|Colombia|Czechia|Denmark|Germany|Hungary|Italy|Japan|Korea, Republic of|Netherlands|New Zealand|Philippines|Poland|Spain|Sweden|Turkey|United Kingdom 1
United States|Argentina|Australia|Belgium|Brazil|Bulgaria|Chile|Colombia|Croatia|Denmark|France|Israel|Mexico|New Zealand|Norway|Peru|Philippines|Poland|Serbia|Slovenia|Sweden|Taiwan|Thailand|Turkey|Ukraine|Vietnam 1
United States|Argentina|Australia|Bulgaria|Canada|Chile|Czech Republic|Hungary|India|New Zealand|Poland|Slovakia|South Africa|Sweden|United Kingdom 1
United States|Argentina|Australia|Bulgaria|Canada|China|Czech Republic|Denmark|Estonia|Finland|France|Germany|Guatemala|Hungary|India|Italy|Japan|Korea, Republic of|Mexico|Netherlands|New Zealand|Portugal|Russian Federation|Slovenia|Turkey 1
United States|Argentina|Australia|Canada|Chile|Denmark|Germany|Italy|Mexico|Netherlands|Peru|South Africa|Spain|Sweden|United Kingdom 1
United States|Argentina|Australia|Canada|Chile|Denmark|Germany|Japan|Korea, Republic of|Netherlands|Romania|Slovakia|Taiwan|Ukraine|United Kingdom 1
United States|Argentina|Australia|Canada|Chile|Estonia|Germany|Italy|Mexico|Netherlands|Peru|Philippines|South Africa|Sweden|United Kingdom 1
United States|Argentina|Australia|Canada|Chile|Germany|Korea, Republic of|Mexico|Romania|South Africa 1
United States|Argentina|Australia|Canada|Chile|Germany|Poland|Russian Federation|Turkey|Ukraine 1
United States|Argentina|Australia|Canada|France|Germany|Italy|Mexico|Netherlands|South Africa|Spain|Sweden 1
United States|Argentina|Australia|Canada|Mexico|New Zealand|South Africa 1
United States|Argentina|Australia|Colombia|Denmark|Germany|Guatemala|Mexico|Philippines|South Africa|Spain|Turkey 1
United States|Argentina|Austria|Canada|Colombia|Czech Republic|Denmark|Estonia|Finland|France|Germany|Greece|Hungary|India|Ireland|Israel|Italy|Mexico|Netherlands|Peru|Philippines|Poland|Puerto Rico|Russian Federation|Slovakia|South Africa|Spain|United Kingdom 1
United States|Argentina|Austria|Canada|Germany|Netherlands|Russian Federation|Sweden 1
United States|Argentina|Brazil|Canada|Germany|Italy|Portugal|Russian Federation|Spain|Taiwan|Ukraine 1
United States|Argentina|Brazil|Chile|Colombia|Mexico|Peru|South Africa|Venezuela 1
United States|Argentina|Brazil|Chile|Costa Rica|Mexico 1
United States|Argentina|Bulgaria|Canada|Chile|China|Czechia|Denmark|Finland|Germany|Hungary|Israel|Italy|Japan|Korea, Republic of|Mexico|Poland|Romania|Russian Federation|Slovakia|Spain|Sweden|Turkey|Ukraine 1
United States|Argentina|Bulgaria|Canada|Chile|Colombia|Croatia|Hong Kong|Hungary|India|Mexico|Philippines|Puerto Rico|Singapore|Taiwan|Thailand 1
United States|Argentina|Bulgaria|Canada|Chile|Germany|Hungary|Korea, Republic of|Netherlands|Philippines|Romania|South Africa|Thailand|United Kingdom 1
United States|Argentina|Bulgaria|Canada|Czech Republic|Germany|Hungary|Japan|Poland|Slovakia|South Africa|Spain|Sweden|Taiwan 1
United States|Argentina|Bulgaria|Canada|Denmark|Hungary|Mexico|Poland|Russian Federation 1
United States|Argentina|Bulgaria|Canada|Germany|Hungary|Romania|Russian Federation|Spain 1
United States|Argentina|Bulgaria|Croatia|Czechia|Germany|Hungary|Poland|Slovakia|South Africa|Spain|Turkey 1
United States|Argentina|Canada|Chile|Colombia|Italy|Malaysia|Mexico|Peru|Philippines|Romania|Russian Federation|Serbia|Spain|Taiwan|Thailand|Ukraine 1
United States|Argentina|Canada|Chile|Denmark|Estonia|Germany|Korea, Republic of|Mexico|Peru|Philippines|Poland|Russian Federation|Slovakia 1
United States|Argentina|Canada|Chile|Denmark|France|Germany|Italy|Korea, Republic of|Romania|Russian Federation|South Africa|Ukraine 1
United States|Argentina|Canada|Chile|France|Germany|Hungary|Israel|Italy|Korea, Republic of|Mexico|Netherlands|New Zealand|Peru|Poland|Russian Federation 1
United States|Argentina|Canada|Chile|Romania 1
United States|Argentina|Canada|Colombia|Mexico|Peru 1
United States|Argentina|Canada|Finland|France|Germany|Hungary|Italy|Spain|United Kingdom 1
United States|Argentina|Canada|Germany|India|Italy|Korea, Republic of|Puerto Rico|Spain|Sweden|Taiwan|Turkey 1
United States|Argentina|Canada|Germany|India|Italy|Spain|Sweden|Turkey 1
United States|Argentina|Chile|Greece|Peru|Romania|Ukraine 1
United States|Argentina|Chile|Guatemala|Honduras|Romania 1
United States|Argentina|Chile|Netherlands|Peru|South Africa 1
United States|Argentina|Czechia|Estonia|Germany|Korea, Republic of|Norway|Ukraine 1
United States|Argentina|France|Greece|Korea, Republic of|New Zealand|Poland|Russian Federation|South Africa|Taiwan|Turkey|Ukraine|United Kingdom 1
United States|Argentina|Germany|Poland|Romania|Russian Federation|Ukraine 1
United States|Argentina|Germany|Russian Federation|Ukraine 1
United States|Argentina|Lithuania|Slovakia|United Kingdom 1
United States|Argentina|Norway 1
United States|Australia|Austria|Belgium|Canada|Denmark|Germany|New Zealand|Poland|Portugal|United Kingdom 1
United States|Australia|Austria|Brazil|France|Germany|Hungary|New Zealand|Romania|Russian Federation|United Kingdom 1
United States|Australia|Austria|Canada|Finland|France|Greece|Ireland|Italy|Netherlands|New Zealand|Russian Federation|South Africa|Spain|United Kingdom 1
United States|Australia|Austria|Canada|Germany|Greece|New Zealand|Norway|Slovakia|South Africa|Sweden 1
United States|Australia|Belgium|Canada|Czechia|Estonia|France|Greece|Italy|Mexico|Norway|Peru|Poland|Russian Federation|Spain|Sweden 1
United States|Australia|Belgium|Canada|France|Germany|Greece|Netherlands|Norway|Russian Federation|Spain|Sweden|Turkey|United Kingdom 1
United States|Australia|Belgium|Canada|Germany|Hungary|Israel|Netherlands|New Zealand|Poland|Spain|United Kingdom 1
United States|Australia|Brazil|Canada|China|Denmark|Finland|France|Germany|Greece|Hong Kong|Hungary|India|Ireland|Italy|Korea, Republic of|Lithuania|Malaysia|Mexico|Netherlands|Norway|Portugal|Singapore|Slovakia|South Africa|Spain|Sweden|Switzerland|Taiwan|Turkey|United Kingdom 1
United States|Australia|Bulgaria|Canada|France|Germany|Guatemala|Hungary|Japan|Philippines|Poland|Russian Federation|Slovakia|South Africa|Spain|Switzerland|Taiwan|Turkey|United Kingdom 1
United States|Australia|Canada|Germany 1
United States|Australia|Canada|Germany|Korea, Republic of|Netherlands|Poland|Romania|Spain 1
United States|Australia|China|Germany|New Zealand|Taiwan 1
United States|Australia|Denmark|Finland|Hungary|New Zealand|Poland|Sweden 1
United States|Austria|Belgium|Brazil|Canada|China|Colombia|Croatia|Germany|Hungary|India|Ireland|Japan|Norway|Romania|Russian Federation|Serbia|Slovakia|South Africa|Spain|Sweden|Taiwan|Turkey|United Kingdom 1
United States|Austria|Belgium|Canada|Colombia|Denmark|Finland|France|Germany|Greece|Hungary|Israel|Italy|Mexico|Norway|Poland|Russian Federation|Slovakia|Spain|Switzerland|Turkey|United Kingdom 1
United States|Austria|Canada|Czechia|Germany|Hungary|Italy|Japan|Korea, Republic of|Netherlands|Poland|Romania|Russian Federation|South Africa|Spain|Switzerland|United Kingdom 1
United States|Austria|Netherlands|United Kingdom 1
United States|Belgium|Canada|Czech Republic|Denmark|Finland|Germany|South Africa|Spain|United Kingdom 1
United States|Belgium|Canada|Czech Republic|Germany|Greece|Netherlands|Portugal|Ukraine|United Kingdom 1
United States|Belgium|Canada|Czechia|Germany|Hungary|Netherlands|Poland|Romania|Russian Federation|United Kingdom 1
United States|Belgium|Canada|Denmark|Germany|Hungary|Netherlands 1
United States|Belgium|Canada|Denmark|Italy|Spain 1
United States|Belgium|Canada|Germany 1
United States|Belgium|Canada|Germany|Netherlands 1
United States|Belgium|Denmark|Estonia|France|Germany|Hungary|Japan|Netherlands|Norway|Philippines|Slovakia|Sweden|Ukraine 1
United States|Belgium|Germany|Hungary|Netherlands|Poland|Spain 1
United States|Belgium|Netherlands 1
United States|Belgium|New Zealand 1
United States|Belgium|Spain 1
United States|Bulgaria|Argentina|Australia|Austria|Belarus|Belgium|Bosnia and Herzegovina|Canada|Chile|China|Colombia|Croatia|Czechia|France|Georgia|Germany|Greece|Hungary|India|Indonesia|Israel|Italy|Japan|Korea, Republic of|Latvia|Macedonia, The Former Yugoslav Republic of|Malaysia|Mexico|Netherlands|Philippines|Poland|Romania|Russian Federation|Serbia|Slovakia|South Africa|Spain|Taiwan|Thailand|Turkey|Ukraine|United Kingdom|Vietnam 1
United States|Bulgaria|Canada|Chile|Czechia|Greece|Japan|Mexico|Poland|Russian Federation|South Africa|Spain|Thailand 1
United States|Bulgaria|Canada|France|Hungary|Russian Federation|Ukraine 1
United States|Bulgaria|Czech Republic|Hungary|Latvia|Lithuania|Philippines|Poland|Ukraine|United Kingdom 1
United States|Bulgaria|Czechia|Germany|Hungary|Israel|Poland|Spain|Ukraine|United Kingdom 1
United States|Bulgaria|Czechia|Germany|Hungary|Italy|Latvia|Poland|Romania|Russian Federation 1
United States|Bulgaria|Denmark|Germany|Greece|Hungary|Iceland|Mexico|Romania 1
United States|Bulgaria|Estonia|Germany|Russian Federation|United Kingdom 1
United States|Bulgaria|Finland|Hungary|Puerto Rico|Romania|Spain 1
United States|Bulgaria|Germany|Hungary|Romania|Russian Federation|Ukraine 1
United States|Canada|Colombia|Czech Republic|Hungary|India|Netherlands|Slovakia|Spain 1
United States|Canada|Czechia|Denmark|South Africa|Ukraine|United Kingdom 1
United States|Canada|Czechia|Germany|Poland|Romania 1
United States|Canada|Denmark|France|Germany|Israel|Korea, Republic of|Netherlands|Spain|United Kingdom 1
United States|Canada|Denmark|France|Germany|Netherlands|Romania|United Kingdom 1
United States|Canada|Denmark|Germany|Poland|Spain|United Kingdom 1
United States|Canada|France|Germany|Poland|South Africa 1
United States|Canada|France|Poland|South Africa|Spain|United Kingdom 1
United States|Canada|Germany 1
United States|Canada|Germany|Hungary|Korea, Republic of|Mexico|Poland|Russian Federation|Spain|Taiwan 1
United States|Canada|Germany|India|Italy|Poland|South Africa|Spain 1
United States|Canada|Germany|Korea, Republic of 1
United States|Canada|Germany|Netherlands 1
United States|Canada|Germany|Netherlands|Spain 1
United States|Canada|Philippines|Poland|Romania|Spain|Ukraine|Vietnam 1
United States|Chile|Czech Republic|Korea, Republic of|Poland 1
United States|Chile|Estonia|Germany|Japan|Korea, Republic of|Mexico|Philippines|Poland|Russian Federation 1
United States|Chile|Estonia|Russian Federation 1
United States|Chile|Mexico|Norway|Romania|Russian Federation|South Africa 1
United States|Chile|Romania|Russian Federation|Slovakia|South Africa 1
United States|China|Czechia|Germany|Hungary|Japan|Korea, Republic of|Poland|Russian Federation|Taiwan|United Kingdom 1
United States|China|Germany|Taiwan 1
United States|Czech Republic|Germany|Korea, Republic of 1
United States|Czech Republic|Germany|Poland|Romania|South Africa 1
United States|Czech Republic|Netherlands|Poland|South Africa 1
United States|Czechia|Germany 1
United States|Czechia|Germany|Netherlands 1
United States|Czechia|Germany|Poland|Romania|Russian Federation 1
United States|Czechia|Hungary|Russian Federation 1
United States|Estonia|Germany|Poland 1
United States|France|Germany|Italy|Mexico|Peru|Poland|Romania|Russian Federation|Ukraine 1
United States|France|Germany|Netherlands|Spain|Turkey 1
United States|France|Italy|Spain 1
United States|Germany|Italy|Romania|United Kingdom 1
United States|Germany|Italy|South Africa|Spain|Ukraine 1
United States|Germany|Japan 1
United States|Germany|Korea, Republic of|Norway|Philippines|Thailand 1
United States|Germany|Netherlands|Norway 1
United States|Germany|Romania|Russian Federation|Ukraine 1
United States|Germany|South Africa 1
United States|Germany|Spain|United Kingdom 1
United States|Netherlands|United Kingdom 1
United States|Poland 1
United States|Poland|Russian Federation 1
Vietnam 1

Sites per Study

Site_count Study_Count
1 924
2 136
3 43
4 41
5 31
6 25
7 15
8 18
9 9
10 15
11 12
12 13
13 10
14 9
15 8
16 6
17 8
18 8
19 10
20 11
21 7
22 3
23 3
24 5
25 7
26 5
27 9
28 4
29 6
30 4
31 7
32 5
33 4
34 5
35 4
36 1
37 5
38 1
39 4
40 6
41 2
42 4
43 5
44 4
45 5
46 1
47 1
48 4
49 4
50 4
51 4
52 3
53 4
54 6
55 5
56 2
57 3
58 1
59 2
60 5
61 2
62 3
64 3
65 1
66 2
67 1
68 3
69 1
70 1
71 1
72 3
73 3
74 1
75 1
76 1
77 1
78 2
79 1
80 1
81 1
83 2
85 1
86 1
88 1
90 2
91 1
92 1
93 2
94 3
95 1
96 2
97 3
98 1
99 1
100 2
101 1
103 2
104 1
105 1
106 1
107 1
110 1
112 3
113 1
114 1
115 1
116 3
118 1
120 3
125 1
126 1
127 1
130 1
132 3
134 1
137 2
138 1
139 1
140 2
143 3
144 1
149 1
157 2
160 1
163 1
165 1
166 2
167 2
170 1
176 1
177 1
178 2
179 1
180 2
183 2
188 1
191 1
197 1
208 1
212 1
213 1
215 1
216 1
222 2
238 1
239 1
240 1
247 1
248 1
270 1
287 1
334 1
338 1
345 2
356 1
409 1
424 1
459 1
468 1
490 1
496 1
544 1
752 1
818 1
999 1
1191 1
1621 1

Phase

Phase Study_Count
N/A 618
Phase 3 330
Phase 2 259
Phase 4 238
Phase 1 165
Phase 1/Phase 2 27
Phase 2/Phase 3 18
Early Phase 1 11

Number of Arms

Number_of_Arms Count_of_Studies
1 199
2 887
3 192
4 112
5 55
6 40
7 8
8 18
9 4
10 2
11 2
12 4
14 1
16 1
NA 141

Number of Updates

Count of Versions Count of Studies
1 164
2 193
3 200
4 174
5 151
6 142
7 84
8 88
9 75
10 45
11 39
12 31
13 27
14 15
15 18
16 11
17 17
18 11
19 13
20 9
21 11
22 6
23 11
24 9
25 8
26 8
27 4
28 4
29 4
30 6
31 6
32 5
33 5
34 2
35 3
36 2
37 3
38 5
39 2
40 1
41 1
42 2
43 2
44 3
45 6
46 1
48 3
49 2
50 2
52 1
53 1
54 1
55 4
56 4
57 1
58 2
59 3
61 1
64 1
67 1
73 1
74 1
81 1
88 1
89 1
92 1
103 1
114 1
142 1
145 1
150 1
161 1

Update History Change Type

Change Type Count_of_Changes Count_of_Studies ratio
Study Status 13197 1502 8.786285
Contacts/Locations 6597 1298 5.082434
Recruitment Status 2418 1304 1.854294
Study Design 1870 1190 1.571429
None (earliest Version on record) 1666 1666 1.000000
Outcome Measures 1513 871 1.737084
Study Identification 1037 598 1.734114
Arms 985 646 1.524768
Interventions 985 646 1.524768
Sponsor/Collaborators 961 638 1.506270
Eligibility 912 528 1.727273
Study Description 723 506 1.428854
More Information 685 260 2.634615
Oversight 605 496 1.219758
References 511 391 1.306905
Conditions 469 281 1.669039
Results 407 407 1.000000
IPDSharing 297 276 1.076087
Baseline Characteristics 285 173 1.647399
Participant Flow 134 122 1.098361
Reported Adverse Events 124 111 1.117117
Results Submission Events 117 117 1.000000
Documents 63 62 1.016129
2020 Study Status 1 1 1.000000
Quality Control Review has not concludedReturned: March 31 1 1 1.000000

Enrollment Metrics by Phase

Measure Early.Phase.1 N.A Phase.1 Phase.1.Phase.2 Phase.2 Phase.2.Phase.3 Phase.3 Phase.4
Min. 5.00000 3.0000 4.00000 15.0000 6.0000 10.0000 14.0000 4.0000
1st Qu. 19.50000 27.0000 16.00000 25.0000 40.0000 29.2500 159.0000 40.0000
Median 34.00000 60.0000 28.00000 34.0000 76.0000 115.5000 457.0000 124.0000
Mean 91.90909 561.6964 40.45732 234.5185 165.2031 272.7222 844.0898 347.8017
3rd Qu. 94.00000 150.0000 45.00000 62.5000 193.2500 180.0000 933.5000 318.0000
Max. 341.00000 197692.0000 420.00000 5000.0000 2080.0000 2059.0000 17183.0000 7376.0000

Trial Group Type

group_type Group_Count
Experimental 2153
Active Comparator 773
Placebo Comparator 521
No Intervention 207
Other 175
NA 141
Sham Comparator 39

Intervention Model

intervention_model Study_Count
Parallel Assignment 1009
Crossover Assignment 410
Single Group Assignment 215
NA 13
Factorial Assignment 10
Sequential Assignment 9

Primary Purpose

primary_purpose Study_Count
Treatment 1176
Supportive Care 113
Basic Science 84
Prevention 69
Health Services Research 59
Other 59
Diagnostic 47
NA 46
Screening 9
Device Feasibility 3
Educational/Counseling/Training 1

Observational Studies

Studies by Country

Country Study_Count
NA 90
United States 72
United Kingdom 49
Germany 31
France 27
China 23
Canada 17
Spain 16
Italy 12
Taiwan 10
Norway 9
Sweden 9
Greece 8
Japan 8
Korea, Republic of 8
Denmark 7
Russian Federation 6
Belgium 5
Brazil 5
Turkey 5
Ireland 4
Israel 4
Netherlands 4
Switzerland 4
Austria 3
Egypt 3
Kazakhstan 2
Argentina|Colombia|Uruguay|Venezuela 1
Australia 1
Australia|China|Korea, Republic of|Taiwan 1
Australia|Germany 1
Australia|New Zealand|United Kingdom 1
Australia|United States|Argentina|Brazil|Canada|China|Colombia|Denmark|France|Germany|Italy|Japan|Korea, Republic of|Mexico|Netherlands|Norway|Spain|Sweden|United Kingdom 1
Austria|Belgium|Denmark|Finland|France|Germany|Greece|Ireland|Italy|Netherlands|Norway|Portugal|Spain|Sweden|Switzerland|Turkey|United Kingdom 1
Austria|Czechia|Hungary|Israel|Romania|Russian Federation|Slovakia|Slovenia|Switzerland 1
Belgium|Denmark|Finland|Germany|Netherlands|Norway 1
Belgium|France|Germany|Greece|Ireland|Italy|Netherlands|Spain|Sweden 1
Belgium|France|Germany|Netherlands|Poland|Spain 1
Belgium|Greece|Netherlands|United Kingdom 1
Bulgaria 1
Bulgaria|Czechia|Hungary|Israel|Lithuania|Poland|Romania|Russian Federation|Slovenia|Switzerland|Ukraine 1
Bulgaria|Greece|Hong Kong|Korea, Republic of|Norway|Slovakia 1
Canada|France 1
Chile 1
Costa Rica 1
Croatia 1
Czechia 1
Denmark|France|Germany 1
Denmark|France|Netherlands 1
Denmark|Germany|United Kingdom 1
Hong Kong 1
Hungary|Slovakia|Slovenia 1
India 1
Israel|United Kingdom 1
Kyrgyzstan 1
Netherlands|United Kingdom 1
Poland|Croatia|Romania|Russian Federation|Slovakia|Slovenia 1
Qatar 1
Romania 1
Serbia 1
Spain|Croatia|Denmark|Ireland|Italy|Netherlands|Norway|Portugal|Sweden|United Kingdom 1
Thailand 1
Uganda 1
United States|Belgium|Canada|Denmark|Finland|Germany|Japan|Korea, Republic of|Poland|Spain|Sweden|United Kingdom 1
United States|Bulgaria|Canada|Czech Republic|Denmark|Netherlands|New Zealand|Norway|Slovenia|Spain|Ukraine|United Kingdom 1
United States|Bulgaria|Canada|Czech Republic|France|Germany|Italy|Russian Federation|Sweden 1
United States|Germany|Italy 1
United States|Puerto Rico 1

Sites per Study

Site_count Study_Count
1 348
2 27
3 14
4 6
5 7
6 4
8 5
9 2
10 1
11 1
12 2
13 3
14 1
15 4
17 1
18 1
19 5
20 5
21 1
22 3
23 1
25 1
26 2
28 1
30 1
32 2
40 2
41 1
42 1
44 1
47 2
50 1
51 1
52 1
57 1
60 1
71 1
74 1
79 1
89 1
90 1
108 1
123 1
141 1
169 1
177 1
185 1
188 1
233 1
298 1
352 1
388 1
418 1
605 1
606 1
701 1
864 1

Number of Updates

Count of Versions Count of Studies
1 79
2 90
3 75
4 63
5 33
6 25
7 18
8 14
9 11
10 7
11 4
12 7
13 5
14 2
15 8
16 6
17 2
18 3
19 3
20 2
21 4
22 3
23 1
24 2
26 2
27 2
29 2
30 2
32 1
36 1
38 1
39 1
43 1
56 1
103 1

Update History Change Type

Change Type Count_of_Changes Count_of_Studies ratio
Study Status 2381 403 5.908189
Contacts/Locations 1006 307 3.276873
None (earliest Version on record) 482 482 1.000000
Recruitment Status 482 312 1.544872
Study Design 445 286 1.555944
Study Identification 232 141 1.645390
Eligibility 225 135 1.666667
Outcome Measures 223 127 1.755905
Study Description 200 133 1.503759
Sponsor/Collaborators 189 144 1.312500
Oversight 127 103 1.233010
Groups 106 80 1.325000
Interventions 106 80 1.325000
References 104 74 1.405405
More Information 90 27 3.333333
Conditions 81 54 1.500000
Results 43 43 1.000000
IPDSharing 26 24 1.083333
Baseline Characteristics 22 18 1.222222
Documents 15 15 1.000000
Reported Adverse Events 13 11 1.181818
Results Submission Events 9 9 1.000000
Participant Flow 8 8 1.000000

Enrollment Metrics

Measure Observational
Min 1.00
1st Qu 80.50
Median 262.50
Mean 10068.25
3rd Qu 1153.75
Max 2100000.00

Observation Model

observational_model Study_Count
Cohort 281
NA 59
Case-Only 46
Other 31
Case-Control 28
Case Control 25
Case-Crossover 7
Family-Based 3
Defined Population, Natural History 1
Natural History 1

Time Perspective

time_perspective Study_Count
Prospective 297
Cross-Sectional 83
Retrospective 64
NA 30
Other 5
Cross-Sectional, Prospective 1
Longitudinal, Prospective 1
Longitudinal, Retrospective 1

Registries

Studies by Country

Country Study_Count
United States 7
China 4
Korea, Republic of 4
Germany 3
United Kingdom 3
Japan 2
Spain 2
Argentina 1
Austria|Bulgaria|Croatia|Czech Republic|Hungary|Latvia|Poland|Russian Federation|Serbia|Slovakia|Slovenia 1
Austria|Spain|Switzerland|United Kingdom 1
Belgium 1
Brazil 1
France 1
Italy 1
NA 1
Netherlands 1
Russian Federation 1
Sweden 1
Taiwan 1
Tunisia 1
Turkey 1

Sites per Study

Site_count Study_Count
1 26
2 2
3 2
4 2
6 2
11 1
15 1
23 1
81 1
180 1

Number of Updates

Count of Versions Count of Studies
1 12
2 6
3 6
4 7
6 1
7 2
8 1
9 1
16 1
22 1
44 1

Update History Change Type

Change Type Count_of_Changes Count_of_Studies ratio
Study Status 150 27 5.555556
Contacts/Locations 69 20 3.450000
None (earliest Version on record) 39 39 1.000000
Recruitment Status 36 21 1.714286
Study Design 25 17 1.470588
Outcome Measures 15 13 1.153846
Study Description 10 9 1.111111
Oversight 9 8 1.125000
Groups 7 4 1.750000
Interventions 7 4 1.750000
Eligibility 6 5 1.200000
Sponsor/Collaborators 6 4 1.500000
Study Identification 5 4 1.250000
IPDSharing 4 4 1.000000
References 3 2 1.500000
Conditions 1 1 1.000000
Documents 1 1 1.000000

Enrollment Metrics

Measure Registries
Min 10.00
1st Qu 117.00
Median 505.00
Mean 88668.03
3rd Qu 3251.00
Max 2500000.00

Registry Model

observational_model Study_Count
Cohort 26
Case-Control 5
Other 5
Case-Only 2
Case-Crossover 1

Time Perspective

time_perspective Study_Count
Prospective 23
Other 9
Cross-Sectional 7

Follow-up

target_duration Study_Count
1 Day 5
3 Years 4
12 Months 3
1 Month 2
1 Year 2
10 Years 2
2 Years 2
20 Years 2
5 Years 2
6 Months 2
8 Years 2
1 Week 1
13 Weeks 1
15 Years 1
18 Months 1
2 Days 1
2 Months 1
2 Weeks 1
24 Weeks 1
4 Years 1
7 Months 1
9 Months 1